GIS data layers are available as ESRI personal geodatabases, compatible with version 10.1 and later, as well as in zipped shapefiles. Point features, where available, have been generated from the most recent HydroBase database. Data coordinates are in the UTM Zone 13 (NAD 83) projection. Polygon and other layers have been collected from other sources. Features generated from HydroBase contain only the minimum attributes for the data type.
| Title/Description | File Type | Last Updated |
|---|---|---|
| Division 1 Boundaries - division, district and county boundaries | Geodatabase | 8/1/2011 |
| Division 1 Canals - Irrigation canals, ditches, and ditch service areas. | Zipped Shapefile | 11/19/2019 |
| Division 1 Soils - STATSGO database with available water capacity calculations | Zipped Shapefile | 1/1/1994 |
| Division 1 Land Use - National land cover dataset | Zipped Shapefile | 5/7/2010 |
| Groundwater Data - aquifer contours and properties, well data, and other groundwater point and raster/grid data | ||
| Division 1 Aquifer Grids | Raster | 8/1/2011 |
| Denver Basin Bedrock Data | Geodatabase | 8/1/2011 |
| South Platte Alluvial Data | Geodatabase | 8/1/2011 |
| SPDSS Groundwater Model Database *Use with Model geodatabase | Database | 12/26/2017 |
| SPDSS Groundwater Model Geodatabase *Use with Model database | Geodatabase | 2/28/2018 |
| Irrigated Lands - irrigated land coverages, associated ditch headgates and wells, ditch service areas. The geodatabase also includes relational tables as well as soil and land use data. Disclaimer: Irrigated lands delineation, crop typing, and other information is provided by DNR for informational purposes only. Data is created by a combination of automated and manual processes and accuracy is not guaranteed. Use of this data as a primary source in Colorado Water Court is not recommended. See GIS metadata and Basin DSS Task Memos for more information about creation of these GIS layers. |
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| Division 1 Irrigated Lands File Geodatabase (includes all years) | Geodatabase | 10/8/2021 |
| Division 1 Irrigated Lands 1956 | Zipped Shapefiles | 4/3/2019 |
| Division 1 Irrigated Lands 1976 | Zipped Shapefiles | 4/3/2019 |
| Division 1 Irrigated Lands 1987 | Zipped Shapefiles | 4/3/2019 |
| Division 1 Irrigated Lands 1997 | Zipped Shapefiles | 4/3/2019 |
| Division 1 Irrigated Lands 2001 | Zipped Shapefiles | 4/3/2019 |
| Division 1 Irrigated Lands 2005 | Zipped Shapefiles | 4/3/2019 |
| Division 1 Irrigated Lands 2010 | Zipped Shapefiles | 4/3/2019 |
| Division 1 Irrigated Lands 2015 | Zipped Shapefiles | 4/3/2019 |
| Division 1 Irrigated Lands 2020 | Zipped Shapefiles | 10/8/2020 |
| Republican Basin Irrigated Lands Geodatabase (includes all years 2010, 2015-2022) | Zipped Geodatabase | 8/15/2023 |
| Republican Basin Irrigated Lands Shapefiles(includes all years 2010, 2015-2022) | Zipped Shapefiles | 8/15/2023 |